The effects of motor adaptation on ankle isokinetic assessments in older drivers

Author(s):Show less -

Angelica Castilho Alonso ^{[1, 2]} ; Guilherme Carlos Brech ^{[1, 2]} ; Rita de Cássia Ernandes ^[3] ; Douglas Rodrigues ^[1] ; Sérgio Ayama ^[5] ; Alexandra Carolina Canonica ^[1] ; Natália Mariana Silva Luna ; Sileno da Silva Santos ^[1] ; Luis Mochizuki ^[6] ; Mark Peterson ^[7] ; Luiz Eugênio Garcez-Leme ^[11] ; Júlia Maria DAndréa Greve ^[12]

Affiliation

^[1] Univ Sao Paulo, Fac Med, Hosp Clin HCFMUSP, Lab Estudos Movimento, Inst Ortopedia & Traumatol, Sao Paulo, SP - Brazil

^[2] Univ Sao Judas Tadeu, Dept Ciencias Envelhecimento, Sao Paulo, SP - Brazil

^[3] da Universidade São Judas Tadeu. Departamento de Ciěncias do Envelhecimento - Brasil

^[4] Universidade de Sao Paulo. Hospital das Clínicas HCFMUSP, Faculdade de Medicina. Laboratorio de Estudos do Movimento, Instituto de Ortopedia e Traumatologia - Brasil

^[6] Univ Sao Paulo, Escola Arte Ciencias & Humanidades, Sao Paulo, SP - Brazil

^[7] Univ Michigan Med, Dept Phys Med & Rehabil, Ann Arbor, MI - USA

^[8] Universidade de Sao Paulo. Grupo de Ortogeriatria. Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina - Brasil

^[9] Universidade de Sao Paulo. Hospital das Clínicas HCFMUSP, Faculdade de Medicina. Laboratorio de Estudos do Movimento, Instituto de Ortopedia e Traumatologia - Brasil

• Document type: Journal article
• Source: Clinics; v. 73, 2018-07-26.

Abstract

OBJECTIVES: This study sought to analyze the extent of motor adaptation in ankle plantar flexors and dorsiflexors among older drivers during clinical isokinetic testing. METHODS: One hundred older adults (70.4±5.7 years) participated in two bilateral ankle plantar flexor and dorsiflexor isokinetic assessments at 30°/sec. Peak torque (PTQ), PTQ adjusted for body weight (PTQ/BW), and total work (TW) were analyzed. RESULTS: On the dominant side, PTQ/BW and TW were significantly greater for the second plantar flexion test than were those for the first such test (p<0.001), whereas PTQ, PTQ/BW, and TW (p<0.001) were significantly greater for the second dorsiflexion test than were those for the first such test. On the non-dominant side, plantar flexion PTQ and TW were significantly lower for the second test than were those for the first test (p<0.001). CONCLUSION: Older drivers demonstrated better performance with the dominant limb on the second test. The low variability in test execution showed the existence of a motor adaptation effect for the tested movements, despite the short recovery period between the assessments. (AU)